Office Service Pack 2 release is important for Access developers as
it fixes more Access bugs than SR 1 did.
Note: Some of these bugs are also fixed by the new Jet Update
Also, there are been several reported problems where the users
were not able to install the SR2 update successfully. Make sure you read the
requirements and these articles first as well.
Here's a list of bugs that Microsoft has reported as being fixed with SR 2.